Wires P and Q are made from the same material and have the same length. They are connected in parallel to one voltage supply. The diameter of wire P is $2\,\text{mm}$ and the diameter of wire Q is $1\,\text{mm}$. Determine the ratio $\dfrac{\text{current in P}}{\text{current in Q}}$?
- A$\dfrac{1}{4}$
- B$\dfrac{1}{2}$
- C$\dfrac{2}{1}$
- D$\dfrac{4}{1}$